There are several issues at work here, but let’s start with the big one. :O)
Instead of you attempting to pleasure him first, maybe you should urge him to take the imitative and help you to find Amy's O. (good movie, btw) This doesn't mean that you shouldn't tease him, just take it slower, and don't go for the tool until he has learned to be more considerate in your needs. :o)
His sensitivity is unfortunately very normal for most males. Some of us just start out that way, then after more experience learns not only how to control but also seem to become less sensitive. So that's something to look forward to.